S
M
T
W
T
F
S
26
87°
66°
27
88°
67°
28
87°
67°
29
84°
66°
30
84°
67°
31
88°
67°
1
87°
66°
2
88°
67°
3
88°
65°
4
88°
67°
5
87°
66°
6
83°
65°
7
85°
60°
8
83°
61°
9
82°
60°
10
82°
60°
11
83°
65°
12
87°
65°
13
88°
64°
14
87°
59°
15
82°
59°
16
82°
64°
17
83°
64°
18
84°
59°
19
84°
58°
20
82°
58°
21
84°
59°
22
85°
58°
23
85°
57°
24
84°
57°
25
83°
58°
26
84°
62°
27
86°
63°
28
85°
62°
29
86°
63°
30
86°
61°
31
84°
54°
1
82°
53°
2
79°
55°
3
79°
54°
4
80°
54°
5
79°
55°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Mainland
Mainland's August 2026 forecast shows daily high temperatures ranging from 79° to 88°, with overnight lows between 53° and 67°. The average high for August is 84° with an average low of 61°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how August weather will actually feel in Mainland. See also: September | October | November.
